Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5831965 | Cartridge changing device | Tatsunori Fujiwara, Takashi Matsuda, Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata | 1998-11-03 |
| 5790507 | Cartridge changing device | Tatsunori Fujiwara, Takashi Matsuda, Yasuyuki Nakanishi, Koutarou Oka, Kei Shirahata | 1998-08-04 |